Which of the following is true for a normal distribution?
A only 99.7% of the data lies under the curve

B The area under the curve is equal to two

C The curve is skewed to the right

D The area under the curve is equal to one

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.

21

step-by-step explanation:

hdjd

step-by-step explanation:

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed